By Luc Cohen and Alexandra Ulmer CARACAS (Reuters) – Inmates at a crowded Caracas detention center revolted on Wednesday, with jailed opponents of Venezuelan President Nicolas Maduro and a Mormon missionary from Utah begging for freedom and medical attention in postings on social media. There was no official information on the incident, but in videos posted on social media men identifying themselves as prisoners said they had taken over the headquarters of intelligence agency Sebin, known as the Helicoide, where hundreds of people are held. “This has been taken over peacefully by all the political prisoners and all the prisoners who are abducted here, who are tortured daily,” a man said in one of the videos.